The chief executive of British Airways owner IAG has defended his new fleet of 787 Dreamliner aircrafts after recent safety issues.
Coverings on both engines were left unlatched after maintenance on the BA plane in last week's Heathrow landing drama according to a report.
A BA jet was forced to make an emergency landing after one engine caught fire and the cowling of the other blew-off.
Willie Walsh - chief of British Airways owner IAG - has said he remains committed to Boeing's new Dreamliner aircraft despite a series of faults.
He said that most new aircraft have "teething problems" but admitted that the grounding of an entire fleet was unusual, adding that social media had contributed to the outcry over the safety of the Dreamliner.
ITV News' Economics Editor Richard Edgar asked whether he was annoyed by the faults:
The chief of International Airlines Group - which owns British Airways - has said he has complete confidence in the Boeing 787 Dreamliner despite a series of faults.
Willie Walsh told me that the string of fires and faults are normal teething problems, which is good seeing as he is buying so many.
International Airlines Group (IAG) - the owners of British Airways - have announced a £29 million loss for the first half of the year.
It compares with a £221 million loss over the same period last year.
The initial report from the AAIB on the emergency landing of BA flight 762 contains serious findings. The industry must act immediately to take the appropriate safety action and ensure that all lessons are learnt from what has happened. Airline passengers have the right to expect to travel safely and it is the responsibility of all involved in aviation to make sure that happens.
– Patrick McLoughlin, Transport Secretary
I would like to thank the AAIB for their hard work in producing the initial report. They must now be allowed to continue with their investigation and when the final report is complete the relevant authorities will need to consider any further action necessary, in line with the recommendations.
Transport Secretary Patrick McLoughlin said the AAIB report on the Heathrow emergency landing "contains serious findings" and the aviation industry "must act immediately to take the appropriate safety action and ensure that all lessons are learnt from what has happened".
The report said the BA plane had undergone scheduled maintenance the night before the incident, which required opening the fan cowl doors on both engines to check oil levels.
The report noted that the plane manufacturer Airbus had recommended airlines strictly adhere to maintenance standards following previous instances of fan cowl door separation on the A320 "family" of planes, which include the A319 in last week's incident.
The report said that last July Airbus said there had been 32 reported fan cowl door detachments.
On some occasions, significant damage was caused to the aircraft but none of those events resulted in a fire.
"The source of ignition that led to the in-flight fire is still under investigation," the AAIB said.
Makers of the plane, Airbus has told ITV News: "We're supporting the AAIB led investigation and will follow its recommendations".
It has been revealed there were 32 other incidents of aircraft engine doors falling off according to today's safety report.
Airlines are being told of the dangers and to ensure they meet proper maintenance procedures.
The report says: "This event has shown that the consequences of fan cowl door detachment are unpredictable and can present a greater risk to flight safety than previously experienced."
Of the previous incidents is says: "80% occurred during the take off phase of flight. On some occasions significant damage was caused to the aircraft, however, none of these events had resulted in a subsequent engine fire."
The engine doors punctured the airframe and some aircraft systems after coming loose and the flight crew decided to return to Heathrow.
On the approach to land an external fire developed on the right engine, although the left engine performing normally throughout the flight.
The emergency services attended and extinguished the fire after the plane had safely landed.
The report said:
Subsequent investigation revealed that the fan cowl doors on both engines were left unlatched during maintenance and this was not identified prior to aircraft departure.